Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d4483faeca0b6c7…

MALICIOUS

PDF

67.9 KB Created: 2020-08-18 19:41:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d3551aa0b9fe8dc35ee9ef2d73435897 SHA-1: d54d07429a9412aecc4f4f8b65dfbedc6805491e SHA-256: 7d4483faeca0b6c715bde8471c8d348429e9b42b9c7a6550d621101f00a61db7
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on 'cdn.shopify.com'. The presence of a visual download button lure further supports a malicious intent to redirect the user to harmful content. No scripts were extracted, limiting the analysis of specific payload delivery mechanisms.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=chemistry+lab+report+book
    • http://files.huntinghillskennel.com/uploads/1/3/2/6/132695734/gidurefi.pdf
    • http://files.learningessentialsnc.com/uploads/1/3/2/7/132740241/4934603.pdf
    • http://files.chesapeakecare.org/uploads/1/3/1/3/131379246/8dd7d30ec4e9.pdf
    • http://dejagigex.ims-spi.com/uploads/1/3/2/7/132740494/7871031.pdf
    • https://cdn.shopify.com/s/files/1/0450/5042/9598/files/check_if_string_is_empty.pdf
    • https://cdn.shopify.com/s/files/1/0431/7999/9383/files/galobog.pdf
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/bigadivixaxuk.pdf
    • https://cdn.shopify.com/s/files/1/0430/3264/1689/files/xazavuvisezizoromutonadis.pdf
    • https://cdn.shopify.com/s/files/1/0441/3577/6408/files/10606409332.pdf
    • https://cdn.shopify.com/s/files/1/0433/7365/8273/files/sample_articles_of_incorporation_ontario.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/jufuzame.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/alhagi_maurorum.pdf
    • https://cdn.shopify.com/s/files/1/0434/4715/6903/files/razapakudelonukibuzaxor.pdf
    • https://cdn.shopify.com/s/files/1/0435/6174/6595/files/febinefifupamu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/70351180593.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4280/files/12029058492.pdf
    • https://cdn.shopify.com/s/files/1/0432/9078/7996/files/tax_audit_report_password.pdf
    • https://cdn.shopify.com/s/files/1/0434/6583/4649/files/c_to_f_conversion.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf25.bin
a70e42888ecc1aad2250c1e927a25a9ee4e35cc6d9c541bf0166bce82b6110c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF25 5068 bytes
font_01_sfnt_off0000d05d.bin
e37c13d0cf9d72b8c7dbe648dd900539e9df880fa180278e3b3246b40cda8ea2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD05D 10420 bytes
font_02_sfnt_off0000f3f4.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F4 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.